6,7-dihydro-3H-imidazo[1,2-a]-purine-9(4H)-ones
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United States of America Patent
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Feb 10, 1987
Issued Date -
N/A
app pub date -
Sep 6, 1983
filing date -
Aug 14, 1980
priority date (Note) -
Expired
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Abstract
Imidazopyrimidinones and other diazaheterocyclopyrimidinones having an additional fused imidazole or triazole ring have utility as bronchodilators, mediator release inhibitors, phosphodiesterase inhibitors, and peripheral vasodilators. They are orally active and useful in the prophylaxis and treatment of asthma. A preferred compound is 4-[(4-chlorophenyl)methyl]-6,7-dihydro-3H-imidazo[1,2-a]-purin-9(4H)-one.
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